Texas Instruments' TPS650861 single-chip, power-management IC (PMIC) is designed to be programmed for optimal output voltages and sequencing. It features three controllers to provide flexible power capable of up to 30 A with large, external field-effect transistors (FETs) for high-power designs as well as scaling down in both size and cost for smaller designs. These devices provide system power for a wide variety of applications thanks to 3 A converters, three general purpose low-dropout regulators (LDOs), a termination LDO for double data rate (DDR), and three load switches.
The D-CAP2™ and distributed control systems (DCSs) high-frequency voltage regulators use small passives to achieve a small solution size. The D-CAP2 and DCS topologies have excellent transient response performance, ideal for processor core and system memory rails that have fast load switching. The TPS650861 has two banks of one-time programmable (OTP) memory.
Features
- Two banks of one-time programmable memory for programming default voltages and sequence
- Wide VIN range of 5.6 V to 21 V
- Three variable-output voltage synchronous step-down controllers with D-CAP2 topology:
- Scalable output current using external FETs with selectable current limit
- Three variable-output voltage synchronous step-down converters with DCS topology:
- VIN range of 3 V to 5.5 V
- Three LDO regulators with adjustable output voltage
- VTT LDO for DDR memory termination
- Three load switches with slew rate control:
- RDS(ON) < 96 mΩ at input voltage of 1.8 V
- 5 V fixed-output voltage LDO (LDO5):
- Power supply for gate drivers of switched-mode power supply (SMPS) and for LDOA1
- Built-in flexibility and configurability by OTP programming:
- Six general purpose input (GPI) pins
- Four general purpose output (GPO) pins
- I2C interface supports standard-mode (100 kHz), fast-mode (400 kHz), and fast-mode plus (1 MHz)
Applications
- Programmable logic controllers
- Machine vision cameras
- Video surveillance
- Test and measurement
- Embedded PCs
- Motion controls